Design and synthesis of a bimodal target-specific contrast agent for angiogenesis

Org Lett. 2004 Dec 23;6(26):4857-60. doi: 10.1021/ol048084u.

Abstract

[structure: see text] A bimodal target-specific contrast agent based on a cyclic peptide containing the target-specific NGR sequence, gadolinium(III) diethylenetriaminepentaacetic acid (Gd(III)DTPA), and Oregon Green 488 (OG488) suitable for both MR imaging and optical imaging of angiogenesis is developed. The synthetic strategy for this target-specific contrast agent exploits the use of highly efficient, chemoselective reactions, such as native chemical ligation, and gives a straightforward approach for double labeling of peptides in general.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Carboxylic Acids / chemistry*
  • Contrast Media / chemical synthesis*
  • Contrast Media / chemistry
  • Gadolinium DTPA / chemical synthesis
  • Gadolinium DTPA / chemistry*
  • Magnetic Resonance Imaging / methods*
  • Molecular Structure
  • Neovascularization, Pathologic / diagnosis*
  • Peptides, Cyclic / chemistry*
  • Sensitivity and Specificity
  • Spectrometry, Mass, Electrospray Ionization / methods

Substances

  • Carboxylic Acids
  • Contrast Media
  • Oregon Green 488 carboxylic acid
  • Peptides, Cyclic
  • Gadolinium DTPA